One-third of the students in mrs. hayko's class walk to school. of the students who do not walk to school, four-fifths take the bus. what fraction of the students in mrs. hayko's class take the bus to school? how many students might be there in her class.

1/3  of the students walks

1 -1/3 = 2/3   so 2/3 of the students do not walk

of the student who do not walk 4/5 take the bus

2/3 * 4/5 = 8/15  

8/15 of her students take the bus

There must be at least 15 student

We only want whole numbers of students, so they must be in multiples of 15

15,30,45,60 etc

Mrs H has either 15 or 30 students.  Higher multiples would be too many students in the class

c

step-by-step explanation:

it isn't d, because the interquartile range is from 27-57. and the interquartile range is basically half the data, it's pretty obvious.

it isn't b, because like i said earlier, the interquartile range is from 27-57. 57-27 is 30. the real range has to be longer

not a either. although it looks like it, 3/4 of the data is not greater than 27. but if c is wrong than this should be correct

the correct answer is c, because 13 is the point in which the plot starts

step-by-step explanation:

i think you should think about the question and not look online.